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公开(公告)号：EP0078694B1
公开(公告)日：1987-02-04
申请号：EP82305795.5
申请日：1982-11-01
申请人： Hitachi, Ltd.
CPC分类号： C21D8/005 , C21D7/13 , C21D9/38 , C22C38/26 , Y10T29/49988
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2.发明公开Method of producing elongate large-size forged article 失效Verfahren zur Herstellung vonlänglichengrossenSchmiedestücken。
公开(公告)号：EP0078694A2
公开(公告)日：1983-05-11
申请号：EP82305795.5
申请日：1982-11-01
申请人： Hitachi, Ltd.
CPC分类号： C21D8/005 , C21D7/13 , C21D9/38 , C22C38/26 , Y10T29/49988
摘要： A metod of producing forged article by casting a molten alloy steel containing 0.02 to 0.15wt% of niobium and 9 to 12wt% of chromium in a metal mold to form an ingot and subjecting the ingot to a forging. The ingot is formed to have a diameter greater than the height thereby to prevent generation of eutectic NbC and sedimental crystals.
摘要翻译： 通过在金属模具中铸造含有0.02〜0.15重量％的铌和9〜12重量％的铬的熔融合金钢来制造锻造制品，以形成锭并对锭进行锻造。 铸锭形成为具有大于高度的直径，从而防止产生共晶NbC和沉淀晶体。
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公开(公告)号：EP0078694A3
公开(公告)日：1984-05-16
申请号：EP82305795
申请日：1982-11-01
申请人： Hitachi, Ltd.
CPC分类号： C21D8/005 , C21D7/13 , C21D9/38 , C22C38/26 , Y10T29/49988
摘要： A metod of producing forged article by casting a molten alloy steel containing 0.02 to 0.15wt% of niobium and 9 to 12wt% of chromium in a metal mold to form an ingot and subjecting the ingot to a forging. The ingot is formed to have a diameter greater than the height thereby to prevent generation of eutectic NbC and sedimental crystals.
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